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Johnson, Daniel E.
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Computer Controls Broaden Shot Peening Design Considerations

Metal Improvement Co., Inc., A Subsidiary of the Curtiss-Wright Corp.-Daniel E. Johnson
Published 1991-04-01 by SAE International in United States
Advances in computer controlled shot peening equipment allow design and materials engineers to use the beneficial effects of shot peening in fundamental design consideration. Modern equipment monitors critical process functions, including air pressure, shot flow, nozzle and workpiece location and translation. This level of process control broadens component design considerations, advances useful applications, heightens quality expectations and can provide gains in process productivity.
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Advanced Concepts of the Process

Metal Improvement Co.-Paul G. Feld, Daniel E. Johnson
Published 1982-02-01 by SAE International in United States
New methods of measuring and controlling coverage and, in special situations, intensities, have been developed and are gaining recognition by concerned users of shot peening. For coverage control a fluorescent material accurately reflects degree of coverage attained. Techniques for the peening of very small holes to achieve a uniform beneficial compressive stress is shown as well as a method of measuring intensity in holes too small to be checked by conventional Alman strips.Shot Peen Precondition of Autofrettage for improved fatigue life are combined to show significantly increased fatigue life in parts treated solely by either of these two processes alone.
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